This ring is vintage and resembles a mothers ring with four children or loved ones birthstones. The birthstones represent: Topaz Citrine of November, Amethyst of February, Aquamarine of March, and August Peridot. I am not a gemologist and cannot certify the authenticity of the gemstones, I can though declare that they are lovely. The ring material is of solid sterling silver and is marked 925 inside the band. This ring weighs 5.7g and is size: 6.75 .